Robertson Square Head Screwdriver Bits

website slot robertson screw In 1908, Canadian Peter Robertson invented a square-head screw drive where the driver and the hole had a slight taper There had been other slot modal 5000 And when you're in a pinch, a hacksaw or Dremel disc can cut a slot into almost any screw (Flat head screws are the ones that can be driven

slot robertson screw 1 Overview · 2 Slotted drives Slot; Coin-slot · 3 Cruciform drives Cross; Phillips · 4 Square drives Robertson · 5 Multiple-square drives   If any one thing distinguishes Canadian home improvement from American home improvement, it is the Robertson screw   Improved grip: The square drive of Robertson screws allows for a tighter grip and greater torque, making them less likely to slip or strip the

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